Main classification of expansion joint:
Pressure unrestrained expansion joints
- Axial expansion joint (AR)
- Universal expansion joint (UD)
Pressure restrained expansion joints
- Hinged expansion joint (HS)
- Gimbal expansion joint (GS)
- Double hinged lateral expansion joint (HD)
- Double gimbal lateral expansion joint (GD)
- Single tied lateral expansion joint (TS)
- Double tied lateral expansion joint (TD)
- Double tied lateral expansion joint (TM)
- Pressure balanced expansion joint (PB)
Special purpose expansion joints
- Externally pressurized expansion joint (AE)
- Central heating expansion joint (AS)
- MAX-COMP expansion joint (MC)
- One-cycle expansion joint (OC)
- Mount-demount expansion joint (DK)
- Rectangular expansion joint (PK)
- Valve bellows (VB)
Design standards
We design, manufacture and test expansion bellows and metal expansion joints according to the following standards:
- EJMA Expansion Joint Manufacturers Association
- EN 14917 Metal bellows expansion joints for pressure applications
- AD2000-Merkblatt
- ASME B31.1 Power Piping
- ASME B31.3 Process Piping
We design, manufacture and test of chimney elements are according to the following standards:
- EN 1856-1:2009 Chimneys - Requirements for metal chimneys - Part 1: System chimney products
- EN 1856-2:2009 Chimneys - Requirements for metal chimneys - Part 2: Metal flue liners and connecting flue pipes
